印刷高手幫幫忙--color control card ?

請印刷界高手幫忙,客戶要我提供Color Control Card? 是否有高手製作過?另外她提到:Once control card approved, please present press proof sample for our review & approval. In this stage, you don’t need to make the color mock up first. We accept just a printed sheet for approva

請幫忙告知什麼是color mock up ?
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